Connecting plate for derrick cross beam of carrier cable crossing system

Abstract

A connecting plate for a derrick cross beam of a carrier cable crossing system is characterized in that the derrick cross beam and connecting plates vertically arranged at the two ends of the derrick cross beam are arranged, the connecting plates are fixedly connected with the derrick cross beam through matched connecting bolts, and construction holes are symmetrically formed in the upper portions and the lower portions of the connecting plates; a U-shaped ring lock is arranged in the upper construction hole, and a suspension rope is suspended in the U-shaped ring lock; a U-shaped ring lock is arranged in the lower construction hole, and a bearing cable pulley is hung, so that the situation that the hanging rope and the bearing cable pulley directly act on the derrick cross beam at the same time, transverse shearing force exists on the derrick cross beam, and potential safety hazards are generated can be avoided.

Description

Technical Field

[0001] This utility model relates to auxiliary tools for crossing operations in the power construction project's overhead line stringing process, and specifically to a connecting plate for the crossbeam of a catenary crossing system. Background Technology

[0002] With the rapid development of the national economy, the demand for electricity is also increasing. Transmission lines are densely distributed, and new or renovated projects often cross existing power lines. Due to factors such as power load, the crossed power lines cannot be shut down for extended periods or at all. According to the State Grid Corporation's safety requirements, protective netting measures are necessary when power lines cross. The most widely used method is the catenary crossing system, which mainly includes support devices, load-bearing cables, and netting devices. Support devices can be in the form of pole beams or flexible cable support devices, with pole beams being the most common. The support device mainly includes suspension ropes, pole beams, and adjustment tools. On-site, steel wire ropes are wrapped around the cross section of the pole beam and then connected by suspension ropes. This method exposes the pole beam to lateral shear force, posing a safety hazard. Furthermore, according to industry standard construction guidelines, it is not advisable to use steel wire ropes to bind temporary beams to the tower components in direct contact with them.

[0003] To address this situation, it is necessary to develop a connecting plate for the crossbeam of the load-bearing cable crossing system to improve construction safety and reliability. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a connecting plate for the crossbeam of the support cable crossing system, so as to improve construction safety and reliability.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0006] A connecting plate for a crossbeam of a catenary bridging system includes a crossbeam and connecting plates arranged vertically at both ends of the crossbeam. The connecting plates are fixed to the crossbeam by matching connecting bolts, and construction holes are symmetrically provided above and below the connecting plates.

[0007] A U-shaped ring lock is installed in the construction hole located above, and a suspension rope is suspended there;

[0008] The lower construction hole is equipped with a U-shaped ring lock and a suspending cable pulley.

[0009] The connecting plate is symmetrically provided with four sets of bolt holes for the connecting bolts to pass through, and each set of bolt holes is arranged in an isosceles right triangle.

[0010] The crossbeams of the pole are arranged in sections, and adjacent sections are connected by matching bolts.

[0011] The U-shaped ring lock includes a U-shaped ring and a connecting hole opened at the top of the U-shaped ring, and a connecting bolt is provided in the connecting hole;

[0012] During assembly, the U-shaped ring is placed on the connecting plate and fixedly connected by connecting bolts passing through the construction hole.

[0013] The connecting plate has three horizontally arranged construction holes above and below it, with the middle construction hole being the main force-bearing hole and the two auxiliary holes on either side.

[0014] The connecting plate is made of steel and has a square structure.

[0015] The beneficial effects of this utility model are:

[0016] 1) The connecting plates for the crossbeam of the gantry crossing system are provided by setting up the crossbeam and connecting plates arranged vertically at both ends of the crossbeam. The connecting plates are fixed to the crossbeam by matching connecting bolts, and construction holes are symmetrically arranged above and below the connecting plates. The upper construction hole is equipped with a U-shaped ring lock and suspends the suspension rope. The lower construction hole is equipped with a U-shaped ring lock and suspends the load-bearing cable pulley. This can avoid the suspension rope and the load-bearing cable pulley acting directly on the crossbeam at the same time, so as to avoid the crossbeam of the gantry having lateral shear force and creating safety hazards.

[0017] 2) The connecting plate for the crossbeam of the catenary crossing system is designed according to the cross-sectional structure and dimensions of the crossbeam. The connecting plate is connected to the crossbeam as a whole by matching bolts to ensure the stability of the entire catenary crossing system.

[0018] 3) Construction holes are provided on one pair of opposite sides of the four sides of the connecting plate. The construction holes are arranged symmetrically and are used to hang the suspension rope and the load-bearing cable pulley respectively. The connecting plate is in a vertical state during use, and the upper and lower construction holes are subjected to symmetrical forces to ensure the stability of the support device and the load-bearing cable system.

[0019] 4) The construction hole of the connecting plate is connected to the suspension rope and the load-bearing cable pulley through the U-shaped ring lock. The U-shaped ring lock has a simple structure and is easy to assemble. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the connecting plate;

[0022] Figure 3 This is a schematic diagram of a U-shaped ring lock;

[0023] Figure 4 This is a structural schematic diagram of the load-bearing cable pulley. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] This utility model provides a connecting plate for the crossbeam of a catenary cable crossing system, such as... Figures 1 to 4 As shown.

[0026] The connecting plates for the gantry beam of the catenary crossing system include the gantry beam and connecting plates arranged vertically at both ends of the gantry beam. The connecting plates are fixed to the gantry beam by matching connecting bolts, and construction holes are symmetrically arranged above and below the connecting plates. The upper construction hole is equipped with a U-shaped ring lock and suspends the suspension rope. The lower construction hole is equipped with a U-shaped ring lock and suspends the load-bearing cable pulley.

[0027] The connecting plate is symmetrically provided with four sets of bolt holes for the connecting bolts to pass through, and each set of bolt holes is arranged in an isosceles right triangle.

[0028] The pole beams are arranged in segments, and adjacent segments are connected by matching bolts. Preferably, each pole beam segment is 2m long, and the connecting plate is made of steel and is designed as a square structure.

[0029] The U-shaped ring lock located in the upper construction hole includes a U-shaped ring and a connecting hole opened at the top of the U-shaped ring, and a connecting bolt is provided in the connecting hole; during assembly, the U-shaped ring is fastened to the connecting plate and fixedly connected by the connecting bolt passing through the construction hole.

[0030] To accommodate various needs, three horizontally arranged construction holes are provided on the top and bottom of the connecting plate, with the middle construction hole being the main load-bearing hole and the two auxiliary holes on either side.

[0031] The following description is based on specific embodiments:

[0032] like Figure 1 As shown, the catenary-supported pole beam crossing system includes a connecting plate 1, a U-shaped ring lock 2, a pole beam 3, a load-bearing cable pulley 4, and a suspension rope 5. In this embodiment, the pole beam 3 has two sections. During use, the number of sections can be increased to three or four sections according to actual site requirements. Each section is connected by bolts. The two sections of the pole beam 3 can also be connected by the connecting plate and its matching bolts 6 (12 bolts in total on a single connecting plate). The suspension rope 5 is made of steel wire rope, providing good safety performance.

[0033] Figure 2The diagram shows connecting plate 1, with each side measuring 1000mm and a thickness of 10mm. Each of the four corners has three bolt holes, each 25mm in diameter. The three bolt holes are arranged in an isosceles right triangle, with a spacing of 70mm between adjacent right-angled sides.

[0034] Figure 3 The U-shaped ring lock shown has a cylindrical connecting bolt 1 with a cross-sectional diameter of 20mm.

[0035] After assembly with the crossbeam, the connecting plate 1 is vertical. The middle hole in the row of construction holes on the top of the plate is the main load-bearing hole, while the front and rear holes are auxiliary holes. All holes have a diameter of 30mm, and the distance between adjacent holes is 300mm. Both ends of the suspension rope 5 are inserted into rope loops, and U-shaped rings are placed on the main load-bearing holes. The suspension rope 5 and the connecting plate 1 are then fixed together using connecting bolts. The suspension rope 5 generates upward tension on the connecting plate 1 through the U-shaped rings.

[0036] The load-bearing cable trolley 4 is connected to the main force-bearing hole below the connecting plate 1 via a ring. After the load-bearing cable passes through the load-bearing cable trolley 4, it is anchored to the ground on both sides, generating downward pressure on the connecting plate 1.

[0037] The connecting plate 1 is the main load-bearing component of the support device for the catenary gantry beam type crossing system. The upper tension and lower pressure borne by the plate itself make the connecting plate stress balanced, thereby ensuring the stability of the support device for the catenary gantry beam type crossing system.

[0038] During installation, the cable-stayed beam crossing system is fixed to the main body of the tower crossarm by suspension rope 5, and the netting device is set on the load-bearing cable to form protection for the crossing power lines.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A connecting plate for a crossbeam of a catenary bridging system, characterized in that: It includes a pole beam and connecting plates arranged vertically at both ends of the pole beam. The connecting plates are fixed to the pole beam by matching connecting bolts, and construction holes are symmetrically arranged above and below the connecting plates. A U-shaped ring lock is installed in the construction hole located above, and a suspension rope is suspended there; The lower construction hole is equipped with a U-shaped ring lock and a suspending cable pulley.

2. The connecting plate for the crossbeam of the gantry beam in a catenary crossing system according to claim 1, characterized in that: The connecting plate is symmetrically provided with four sets of bolt holes for the connecting bolts to pass through, and each set of bolt holes is arranged in an isosceles right triangle.

3. The connecting plate for the crossbeam of the gantry beam in a catenary crossing system according to claim 1, characterized in that: The crossbeams of the pole are arranged in sections, and adjacent sections are connected by matching bolts.

4. A connecting plate for a crossbeam of a catenary crossing system according to any one of claims 1 to 3, characterized in that: The U-shaped ring lock includes a U-shaped ring and a connecting hole opened at the top of the U-shaped ring, and a connecting bolt is provided in the connecting hole; During assembly, the U-shaped ring is placed on the connecting plate and fixedly connected by connecting bolts passing through the construction hole.

5. A connecting plate for a crossbeam of a catenary crossing system according to claim 4, characterized in that: The connecting plate has three horizontally arranged construction holes above and below it, with the middle construction hole being the main force-bearing hole and the two auxiliary holes on either side.

6. A connecting plate for a crossbeam of a catenary crossing system according to claim 4, characterized in that: The connecting plate is made of steel and has a square structure.

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